250 Pcs Roll pin Assortment, SAE Roll Pin Set, Slotted Spring Pins, Steel Split Expansion Pin, Black Roll Pins, 1/16 5/64 3/32 1/8 5/32 3/16 7/32 1/4 5/16 3/8 Inch Spring Dowel

250-Piece SAE Roll Pin Set - Slotted Spring Pins, 1/16 in to 3/8 in, 45# Carbon Steel, Black Oxide
✔️ 250 pcs; SAE sizes 1/16 to 3/8 in; carbon steel with black oxide finish.

These hollow roll pins are handy fasteners designed for quick, flush installations in machinery, fixtures, and automotive components. Made from 45# carbon steel with a black oxide finish, they resist corrosion and provide dependable alignment and fastening in both professional shops and DIY projects.

✅ 250-piece set in a durable, clearly labeled storage box for fast size identification
✅ Material: 45# carbon steel with black oxide finish for rust resistance and strength
✅ Type: Slotted roll pins that expand under load for secure retention and easy installation
✅ Sizes included (SAE): 1/16 in (1.59 mm) to 3/8 in (9.53 mm) with inch/mm equivalents
✅ Chamfered ends on both sides for flush seating in holes and reduced risk of damage
✅ Wide applications in automotive, appliances, machinery, fixtures, and general repairs
✅ Storage box is sturdy and organized, helping you grab the right pin fast
💡 What is a roll pin set and where is it used in mechanical assemblies? Roll pins are handy fasteners used to locate and secure components in a variety of assemblies. They are embedded in holes and expand to hold parts together, delivering reliable retention in a compact, easy-to-install form. - They provide lined-up, precise positioning for shafts, gears, and housings - They’re commonly used in automotive, industrial, and home repair projects - They resist loosening under vibration when installed correctly - They offer a handy, quick-install solution for common hole diameters (1/16" to 3/8") for fast, repeatable results